![]() ![]() Cobalt has an electronegativity of 1.88 Allotropes of Cobalt The electron configuration of the cobalt atom is 3d 74s 2. It’s an essential trace element in the body, and like iron it can be magnetized. It shares some physical and chemical properties with nickel. It is a silver-grey transition metal that lies to the right of iron, to the left of nickel, and above rhodium in the periodic table. The Element Cobalt in the Periodic TableĬobalt has atomic symbol Co, and atomic number 27. Nearly a third of annually-produced cobalt funnels to the ceramic and paint industries. The term “spin” describes the angular momentum electrons exhibit as they travel around the nucleus.ġ0. In 2010, when German researchers captured the first-ever images of changing “spins” in an atom, they utilized cobalt. The European Union considers cobalt a “critical raw material” because few places exist in which cobalt can be mined in large quantities, and it also has extremely high demand.ĩ. The cobalt isotope Co-60 is key to the production of gamma rays, which can be used to treat cancer and also sterilize medical supplies.Ĩ. The oldest cobalt-colored glass, discovered in Egypt, dates back to nearly 1550 BCE.ħ. Cobalt phosphate can generate a violet color, and cobalt green results from combining cobalt oxides and zinc oxides.Ħ. Cobalt compounds can create many pigments, not just cobalt blue. The scientist responsible, Georg Brandt, became the first recorded metal discoverer in history.ĥ. The element cobalt was the first metal to be discovered that was not an “ancient metal” like copper or gold. Cobalt’s dominant current application is its function in lithium-ion batteries.Ĥ. It comprises the backbone of vitamin B12, which facilitates blood formation and nervous system functioning, among other important things.ģ. Cobalt is an essential component of all living organisms. ![]() The toxic vapors turned out to be arsenic, which was commonly found with cobalt. The element received this name because medieval miners looking for tin thought its ore released toxic vapors when smelted. The term “cobalt” is derived from the German word “kobold,” meaning goblin. 10 Interesting & Fun Facts About Cobaltġ. Even one of its radioactive isotopes, Co-60, has proven key to the irradiation of many food products. Cobalt’s uses are quite diverse, extending to turbine and aircraft engines, the petroleum and chemical industries, and drying agents in paints and inks. Cobalt appears solid with a silver-white luster and bluish tinge, and it remains brittle at room temperature. This metal occurs naturally in air, water, soil, rocks, plants, and animals. Therefore, there are various non-equivalent definitions of atomic radius.The element cobalt, located in Group 9 on the Periodic Table, falls into the transition metal category. However, this assumes the atom to exhibit a spherical shape, which is only obeyed for atoms in vacuum or free space. The atomic radius of a chemical element is a measure of the distance out to which the electron cloud extends from the nucleus. It must be noted, atoms lack a well-defined outer boundary. ![]() ![]() The atomic radius of Cobalt atom is 126pm (covalent radius). Note that, each element may contain more isotopes, therefore this resulting atomic mass is calculated from naturally-occuring isotopes and their abundance. The atomic mass is carried by the atomic nucleus, which occupies only about 10 -12 of the total volume of the atom or less, but it contains all the positive charge and at least 99.95% of the total mass of the atom. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element. Mass numbers of typical isotopes of Cobalt are 59. Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. The difference between the neutron number and the atomic number is known as the neutron excess: D = N – Z = A – 2Z.įor stable elements, there is usually a variety of stable isotopes. Neutron number plus atomic number equals atomic mass number: N+Z=A. The total number of neutrons in the nucleus of an atom is called the neutron number of the atom and is given the symbol N. The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10 -19 coulombs. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. Atomic Number – Protons, Electrons and Neutrons in CobaltĬobalt is a chemical element with atomic number 27 which means there are 27 protons in its nucleus. ![]()
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